DTS-MA 7.1 and Direct Play on Roku TV - No audio unless entire video is transcoded
- Roku TV (TCL 55p) with new Sony receiver via ARC
- Roku audio settings: Audio mode (Dolby D+, DTS), S/PDIF and ARC (Dolby D+, DTS)
- Direct Play = Force
- Local Quality = Original
- Allow Direct Stream = No
I have a number of Blu Ray rips and after extensive testing, I've noticed the following behavior.
1.) DTS-MA 5.1 tracks will play perfectly fine and the DTS core audio is passed through to the receiver
2.) DTS-MA 7.1 will never be played with Direct Play
3.) When only DTS-MA 7.1 is present in the mkv, no audio
4.) Regardless of the audio track I've selected, if there is another audio track (i.e, AC3 w/ commentary), it will be played instead of the main DTS-MA track. This is a little bit annoying, but I guess that's a separate issue.
Here are the questions I have. Any answers from a Plex developer would be appreciated.
- Why can't the DTS core be sent to the receiver with DTS-MA 7.1 tracks the same way as 5.1 tracks? I'm aware of the blatent disregard for quality audio that Roku seems to have (no HD codec support, DTS sync bugs, etc), but in this instance, what's stopping Plex from allowing DTS-core with 7.1 tracks?
- I can get audio from these mkv files IF I set Direct Play to "auto" and allow transcoding. BUT this is a big deal, since it will transcode the video as well, causing me to lose HDR, as well as pegging my media server's CPU and causing playback to be less responsive and poorer quality. Why can't Plex only transcode the audio tracks? I would easily put up with an AC3 transcode of DTS-MA or TrueHD if I could keep the original video stream.